On Thu 02-04-20 22:34:55, Baoquan He wrote:
> Since commit 397dc00e249ec64e10 ("mips: sgi-ip27: switch from DISCONTIGMEM
> to SPARSEMEM"), the last caller of free_bootmem_with_active_regions() was
> gone. Now no user calls it any more.
>
> Let's remove it.
>
> Signed-off-by: Baoquan He <bhe@xxxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
> ---
> RESEND:
> To add linux-mm to CC list.
>
> include/linux/mm.h | 4 ----
> mm/page_alloc.c | 25 -------------------------
> 2 files changed, 29 deletions(-)
>
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index 1cd8b8f8534d..9c093f7c751d 100644
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -2363,8 +2363,6 @@ static inline unsigned long get_num_physpages(void)
> * memblock_add_node(base, size, nid)
> * free_area_init_nodes(max_zone_pfns);
> *
> - * free_bootmem_with_active_regions() calls free_bootmem_node() for each
> - * registered physical page range. Similarly
> * sparse_memory_present_with_active_regions() calls memory_present() for
> * each range when SPARSEMEM is enabled.
> *
> @@ -2380,8 +2378,6 @@ extern unsigned long absent_pages_in_range(unsigned long start_pfn,
> extern void get_pfn_range_for_nid(unsigned int nid,
> unsigned long *start_pfn, unsigned long *end_pfn);
> extern unsigned long find_min_pfn_with_active_regions(void);
> -extern void free_bootmem_with_active_regions(int nid,
> - unsigned long max_low_pfn);
> extern void sparse_memory_present_with_active_regions(int nid);
>
> #endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index 138a56c0f48f..2892ebeaa6c9 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -6356,31 +6356,6 @@ int __meminit __early_pfn_to_nid(unsigned long pfn,
> }
> #endif /* CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID */
>
> -/**
> - * free_bootmem_with_active_regions - Call memblock_free_early_nid for each active range
> - * @nid: The node to free memory on. If MAX_NUMNODES, all nodes are freed.
> - * @max_low_pfn: The highest PFN that will be passed to memblock_free_early_nid
> - *
> - * If an architecture guarantees that all ranges registered contain no holes
> - * and may be freed, this this function may be used instead of calling
> - * memblock_free_early_nid() manually.
> - */
> -void __init free_bootmem_with_active_regions(int nid, unsigned long max_low_pfn)
> -{
> - unsigned long start_pfn, end_pfn;
> - int i, this_nid;
> -
> - for_each_mem_pfn_range(i, nid, &start_pfn, &end_pfn, &this_nid) {
> - start_pfn = min(start_pfn, max_low_pfn);
> - end_pfn = min(end_pfn, max_low_pfn);
> -
> - if (start_pfn < end_pfn)
> - memblock_free_early_nid(PFN_PHYS(start_pfn),
> - (end_pfn - start_pfn) << PAGE_SHIFT,
> - this_nid);
> - }
> -}
> -
> /**
> * sparse_memory_present_with_active_regions - Call memory_present for each active range
> * @nid: The node to call memory_present for. If MAX_NUMNODES, all nodes will be used.
> --
> 2.17.2
>
--
Michal Hocko
SUSE Labs
